Class definition syntax in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a class named Car.

Python

class [1]:
    pass

Drag options to blanks, or click blank then click option'

ACar

Bcar

Cvehicle

DCarClass

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase names for classes.

Adding parentheses after the class name when not inheriting.

The class name should be Car with a capital C to follow Python naming conventions.

2fill in blank

medium

Complete the code to add an __init__ method that takes self and color as parameters.

Python

class Car:
    def [1](self, color):
        self.color = color

Drag options to blanks, or click blank then click option'

A__init__

Bstart

Cinitialize

Dconstructor

Attempts:

3 left

💡 Hint

Common Mistakes

Using a method name like 'initialize' or 'constructor' which are not Python special methods.

Forgetting the double underscores.

The special method to initialize a class in Python is called __init__.

3fill in blank

hard

Fix the error in the method definition to correctly define a method named describe that takes only self.

Python

class Car:
    def describe([1]):
        print(f"This car is {self.color}.")

Drag options to blanks, or click blank then click option'

Acar

Bthis

Cself

Dcls

Attempts:

3 left

💡 Hint

Common Mistakes

Using other names like 'this' or 'cls' which are not correct for instance methods.

Omitting the parameter entirely.

The first parameter of instance methods must be self to refer to the object.

4fill in blank

hard

Fill both blanks to create a method named paint that changes the car's color to a new color passed as new_color.

Python

class Car:
    def [1](self, [2]):
        self.color = new_color

Drag options to blanks, or click blank then click option'

Apaint

Bcolor

Cnew_color

Dchange

Attempts:

3 left

💡 Hint

Common Mistakes

Using a parameter name different from the one assigned to self.color.

Using a method name that does not describe the action.

The method name should be paint and the parameter for the new color should be new_color.

5fill in blank

hard

Fill all three blanks to define a class Person with an __init__ method that takes self, name, and age, and assigns them to instance variables.

Python

class [1]:
    def [2](self, name, age):
        self.[3] = name
        self.age = age

Drag options to blanks, or click blank then click option'

APerson

B__init__

Cname

Dage

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect method names for the constructor.

Assigning to a different instance variable name than the parameter.

The class name is Person, the constructor method is __init__, and the instance variable for the name is name.